W83627EHG Nuvoton Technology Corporation of America, W83627EHG Datasheet - Page 45

• Manufacturer Part Number: W83627EHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

W83627EHF/EF, W83627EHG/EG
An optional beep tone could be used as warning signals when the monitored parameters are out of the
preset range.
7.2
Access Interface
W83627EHF/EHG provides two interface for microprocessor to read/write hardware monitor internal
registers.
7.2.1
LPC interface
The first interface uses LPC Bus to access which the ports of low byte (bit2~bit0) are defined in the port
5h and 6h. The other higher bits of these ports are set by W83627EHF/EHG itself. The general
decoded address is set to port 295h and port 296h. These two ports are described as following:
Port 295h: Index port.
Port 296h: Data port.
The register structure is showed as the Figure 7.1
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